The name given to the process where heat makes a solid become a liquid
Answer:
Melting
Explanation:
Using heat on a solid would make it become a liquid.
Which of these nutrients can be found in all organic compounds?
Answer:
carbon. Carbon is the element found in all organic compounds
Answer:
carbon
Explanation:
edge
Which of the following is not charactersitic of facilitated diffusion?
Which statement describes photosynthesis?
a. Carbon dioxide and water combine to form glucose and oxygen.
b. Carbon dioxide and glucose combine to produce energy and water.
c. Carbon dioxide, glucose, and water are released to produce energy.
d. Carbon dioxide and water are released when glucose and oxygen combine.
Answer:
Your answer is A). In the presence of sunlight, plants take in the CO2 that we breathe out, and absorb water from the ground to make glucose (which the plant will use for energy when the sun isn't out), and oxygen which we breathe in again.
What process moves energy from Earth's surface to high in the troposphere?
a. solar energy
b. conduction
C. convection
d. the nitrogen cycle
Answer:
Explanation:
Energy is transferred between the Earth's surface and the atmosphere in a variety of ways, including radiation, conduction, and convection. The rate of energy transfer by conduction is higher when there is a large temperature difference between the substances that are in contact.
Cells spend most of their time in..... a. interphase b. mitosis c. cytokinesis b. both mitosis and cytokinesis
Answer:
interphase..............
(30 points) {brainliest} pls help
Which of the following refers to the physiological effects of drugs when administered to a living organism?
A. Immunology
B. Pharmacodynamics
C. Genetics
D. Pharmacokinetics
Answer:
B. Pharmacodynamics
Explanation:
Pharmacodynamics refers to the physiological effects of drugs when administered to a living organism?
Answer:
B. Pharmacodynamics
Explanation:
PF
Which statement describes an interaction between the biosphere and the atmosphere that is related to
photosynthesis?
A.During photosynthesis, plant roots take in water from soil.
B.During photosynthesis, plants take in carbon dioxide from the air.
C.Through photosynthesis, energy stored in plants is released into the air.
D.Through photosynthesis, energy stored in plants is transferred to humans who eat them.
Answer:
B.During photosynthesis, plants take in carbon dioxide from the air.
Explanation:
A.During photosynthesis, plant roots take in water from soil. - water is part of the hydrosphere, not the atmosphere.
B.During photosynthesis, plants take in carbon dioxide from the air. - this is true, the plant - a living thing and part of the biosphere - takes carbon dioxide from the atmosphere to use during photosynthesis.
C.Through photosynthesis, energy stored in plants is released into the air. - this is false, plants release oxygen into the atmosphere as part of photosynthesis , which synthesises glucose. It does not release energy.
D.Through photosynthesis, energy stored in plants is transferred to humans who eat them. - this is true, but does not involve the atmosphere (air in the environment)
chemosensitive cells in the carotid and aortic bodies are sensitive to the
They are sensitive to changes in arterial carbon dioxide, oxygen and Ph.
Explanation:
!!!Please help!!!
What statement describes the process of solar nuclear fusion?
A. Hydrogen molecules are fused together and become hydrogen molecules, giving off large amounts of energy
B. Hydrogen molecules are fused together and become oxygen molecules, giving off large amounts of energy.
C. Hydrogen atoms are fused into deuterium, then helium -4, then back into hydrogen, each step giving off large amounts of energy
D. Hydrogen atoms are fused into deuterium, then helium -3, then helium-4, each step giving off large amounts of energy
Answer:
B
Explanation:
Fusing both molecules would create a blast of energy not even the atoms can withstand so they explode but implode at the same time.
A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it.
The student first proceeds to open the soft drink bottle and place it on the floor.
Next the student drops candy tablets into the drink using a rolled piece of paper, so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble.
Answer:
The candy tablets being added to the drink. (A)
Explanation:
I took the test on edge.
Which of the following statements best describes the role of adenylyl cyclase in the epinephrine signaling pathway?
Group of answer choices
It converts a polymer to its monomer subunits.
It moves substances across the plasma membrane.
It accelerates the production of a second messenger.
It transfers phosphate groups from to protein substrates.
Answer:
It accelerates the production of a second messenger.
Explanation:
Adenylyl cyclase is an enzyme capable of converting ATP molecules into cyclic adenosine monophosphate AMP (cAMP). The cAMP molecule is considered to be a second messenger that transfers the hormonal signal (i.e., epinephrine) inside the cell. Subsequently, cAMP activates molecular signaling events by binding and thus activating cAMP-dependent protein kinase A (PKA). Finally, this last protein (PKA) phosphorylates different proteins that control many diverse cellular processes.
Taxol is a drug that comes from the bark of a tree that binds and irreversibly stabilizes microtubules. It is often used during chemotherapy to kill dividing cancer cells. How does taxol block cell division
Taxol is a drug that comes from the bark of a tree that binds and irreversibly stabilizes microtubules. It is often used during chemotherapy to kill dividing cancer cells. How does taxol block cell division?
A-
Taxol prevents the contractile ring from forming and dividing the cell in two.
B-
Taxol prevents DNA replication.
C-
Taxol prevents chromosome condensation during prophase.
D-
Taxol prevents spindle formation and separation of chromatids.
Answer: D-
Taxol prevents spindle formation and separation of chromatids.
Explanation:
The Taxol is used as an anticancer drug formulation. It is obtained from yew tree. An anticancer drug affects the cell cycle machinery so as to limit the production of cancer cells. This drug ceases the microtube formation in animal cells. This prevents the spindle fiber formation and further prevents the mitosis of cancerous cancers as the chromosomes will not separate apart and so abnormal cells will not produce further.
Cells spend most of their time:
growing
dividing
doing both equally
Answer:
Dividing
Explanation:
What are some of the differences and similarities between a plant cell and an animal cell
2. What was the purpose of examining three pieces of bread and three pieces of apple in each treatment?
Complete question:
Experiment 1: Mold Growth on Bread and Fruit
The purpose of this experiment is to analyze the mold growth on bread and apple under different conditions.
After performing the experiment, the student must answer a sequence of questions. One of the questions is "What was the purpose of examining three pieces of bread and three pieces of apple in each treatment?".
Answer:
The purpose of examining three pieces of bread and three pieces of apple is to obtain more precise results in the experiment, with the lower error possible.
Explanation:
Each piece of bread and apple is a replica.
In an experiment, replica refers to the repetition of the basic experiment. Each replica might be considered as a copy of other replicas, and its importance relies on getting a better estimation of the experimental error and obtaining a more precise response or answer to the question. The higher number of replicas in an experiment, the better results will be obtained.
Wild-type traits are always dominant.
What structure on plants is the location where photosynthesis takes place?
Root
Stem
Leaf
Flower
Answer:
It's the leaf, or it is called chloroplasts.
Explanation:
Answer: Leaf
Explanation:
Based on Figure 1, which of the following statements best describes the epinephrine signaling pathway?
Group of answer choices
It involves the opening and closing of ion channels.
In involves enzymes activating other enzymes.
It involves changes in the expression of target genes.
It involves protons moving down a concentration gradient.
Answer:
It involves enzymes activating other enzymes.
Explanation:
Epinephrine activates glycolysis (i.e., glycogen breakdown) in skeletal muscle and at a lower level in the liver, which is more responsive to glucagon. When epinephrine binds to a G protein-coupled receptor, the receptor changes its conformation and then triggers a molecular cascade that involves the production of cyclic adenosine monophosphate (cAMP), a well known second messenger molecule in signal transduction pathways. Moreover, the beta-2 adrenergic receptor (ADRB2) is a G-protein-coupled receptor known to activate adenylate cyclase enzyme that leads to appropriate increases in cAMP and activation of protein kinase A (PKA).
Based on Figure 1, the statement that best describes the epinephrine signaling pathway is:
B. It involves enzymes activating other enzymes.
Epinephrine signaling pathway occurs when the neurotransmitters in the body helps the hormones to communicate with the epinephrine.
When this happens, there is a reaction within the receptor, causing it to become active.
As a result of this, there is a binding with the G-protein receptor which releases the cyclic adenosine monophosphate (cAMP).
This in turn, activates the other enzymes.
Therefore, the correct answer is option B
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Question 1 (2 points)
What does the illustration below represent?
RNA
Uracil
Monomer
DNA
Answer:
DNA
Explanation:
RNA is not a double helix
Uracil is on the RNA, this is a picture or DNA. Uracil is just one of the nucleic bases
This is not a monomer; it's actually a polymer
It is DNA because it is a double helix structure held together by the four nucleic bases.
The illustration below represents the double helical structure of DNA. Thus, the correct option for this question is D.
What is DNA?DNA stands for deoxyribonucleic acid. It may be defined as a type of molecule that contains the genetic information responsible for the development and function of an organism. It is present in the nucleus of the cell. DNA is the most common type of genetic material among living organisms.
The illustration below is not RNA because RNA is only made up of single-stranded. While uracil is a type of base which is particularly present in the RNA instead of thymine.
DNA is the polymer of building units or monomers of nucleotides which are generally present in the structure with the help of covalent and hydrogen bonding. There are various types of bases present over the nucleotide which defines the arrangement of DNA molecules.
Therefore, the illustration below represents the double helical structure of DNA. Thus, the correct option for this question is D.
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Which statement best describes how work and power are related?
A. Power is the amount of work done in a certain amount of time.
B. Power is the amount of work done multiplied by the distance over
which work is done.
C. Power is a measure of how much of the total work done is actually
useful.
D. Power is a measure of the amount of work done expressed in
units of energy
Answer:
its d i think
Explanation:
1 pts
Which of the following is best defined by "the amount of oxygen dissolved in arterial
blood plasma measured in kilopascals"?
Oxygen Capacity
O None of these are a correct choice
O Arterial Oxygen Content
Partial Pressure of Arterial Oxygen
O Oxygen Saturation
Answer:
Arterial Oxygen Content
because arterial is the amount of oxygen bound of hemoglobin plus the amount of oxygen dissolved in arterial blood
PLEASE HELP!!! A scientist concludes that genetic inheritance of a mutated (changed) gene, such as a gene change that creates different-colored organisms in a population, is more beneficial to an organism over time and contributes to biological fitness. Discuss why a scientist would make that claim.
i posted a few min. ago and someone stole 30 points by answering and saying they couldnt help. please answer the question if you can and dont steal my points....
Answer:
When the organism inherits a mutated gene creating new colored organisms into the population, this can increase diversity. As more organisms inherit the same mutation, the population will become more variated, which can increase the organisms abilities to survive and adapt in a changing environment, and also improve the biological fitness of individuals; resulting in allowing more organisms to reproduce successfully.
Explanation:
HELP PLEASE ASAP!! PLS HELP!
Answer: I think the first one is d and the second is a
Explanation:
A costumer wants to buy a 1:1 mixture of blue and red beans. Each blue bean is twice as massive as each red bean. If the clerk measure out five kilos of red beans, how many kilos of blue beans must be measure out?
2.5 kilsos because if you double that it goes to 5 kiilos.
Which statement accurately compares the mass and
weight of an object on these two planets?
An object weighs about one-sixth as much and has
about one-sixth the mass on Pluto as on Mercury.
An object weighs about one-sixth as much but has
the same mass on Pluto as on Mercury.
O An object weighs the same but has about one-sixth
the mass on Pluto as on Mercury.
O An object weighs the same and has the same mass
on Pluto as on Mercury.
Answer: I think the answer is c
Explanation:
Answer:
It's B
Explanation:
Got the answer from Edgen
12) On the diagram below:
Outside of cell
A
B
1-6
С
-H
1-G
D
-F
Inside of cell
Label the structures:
A:
B:
H:
Explanation:
A . Carbohydrate chainB .C.Protien D . cholesterolE . phospholipidf.G . hydrophilic head of phospholipidh . hydrophobic tail of phospholipidDogs have 39 chromosomes. Each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere. Once the chromosome has split, each chromatid is called a daughter chromosome. At the end of cytokinesis, how many daughter chromosomes will be found in each dog cell?
Answer:
39 daughter chromosomes
Explanation:
This question is describing the MITOTIC process, which involves the synthesis of two daughter cells from one parent cell. In mitosis, sister chromatids, which forms a chromosome, separates at their centromere to become individual chromosomes in their respective daughter cells.
N.B: Mitosis produces two daughter cells which are identical in chromosome number.
In this case, a dog is said to have 39 chromosomes in its diploid cell. Since two chromatids make up one chromosome, 78 chromatids will be found in the dog cell. The 78 sister chromatids that form 39 chromosomes will each separate at their centromere to form 39 daughter chromosomes in each daughter dog cell.
A student claims that electronegativity is not related to the
concept of polarity. Use water as an example to provide
reasoning to refute the student's claim.
PLEASE HELP!
Answer:
Please find the explanation below
Explanation:
Polarity of a molecule is the function of the difference between the electric charges of two atoms that make up the molecule. This polar nature is greatly influenced by the ELECTRONEGATIVITY, which is the ability to attract electrons, of the atoms involved. For example, using water molecule, H2O, as a case study.
Water is known to be a highly polar molecule due to the electronegativity values of the atoms that make up its molecule. Oxygen atom is a more electronegative atom than hydrogen, hence, it pulls more electrons towards itself, leaving the hydrogen atom more electropositive. This forms the difference in the electrostatic force between oxygen and hydrogen, making water POLAR.
HENCE, the student is wrong to have said electronegativity is not related to the concept of polarity.
Which of the following characteristics is shared by all modern living systems?
A. Multicellular body systems
B. Codons based on a triplet code
C. DNA as the genetic material
D. Sub-cellular organelles
Answer:
B-Condon's based on a triplet code
Expl
The characteristic shared by all modern living systems among the options provided is DNA as the genetic material. Therefore option C is correct.
DNA (deoxyribonucleic acid) is a molecule that carries the genetic instructions for the development, functioning, and reproduction of all known living organisms. It is a long, double-stranded helix structure composed of nucleotides.
Thus, DNA as the genetic material is a fundamental characteristic shared by all known modern living systems.
It encodes the instructions necessary for the development and functioning of an organism, allowing for the transmission of genetic information from one generation to the next.
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